Flush-tank.



S. S. WILLIAMSON.

FLUSH TANK. APPLICATION FILED NOV-3.1916- Patented July 3, 1917.

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UNI ED STATES PATENT OFFICE.

SAMUEL s. WILLIAMSON, or PHILADELPHIA, PENNSYLVANIA.

FLUSH-TANK.

To all whom it may concern:

Be it known that I, SAMUEL S. WILLIAM- soN, a citizenof the UnitedStates, residing at Philadelphia, in; the county. of Philadelphia andState of Pennsylvania, have invented new and useful Improvements inFlush-Tanks, of which the following, is a specification.

My invention relates to new and useful improvements in flush tanks forwater closets and the-like, and has for its object to provide meanswhereby the proper level of water may be maintained in the tank until itis desired to withdraw the same, which by giving the stationary siphonan initial start the tank will beemptied'to a point level with theintakeof the siphon, and thereafter no further water can be withdrawnfromthe tank until thetank has been re filled to its original waterlevel, thus avoiding the waste of Water which has heretofore been causedby leakage, emptying the tank beforeit has suflicient water therein toproperly flushthe closet and from the leaking of the flush valve.

A further object of the invention istoaprovide a quick acting mechanismfor giving the stationary siphon its initial start.

With these ends in view, my invention consists in the details ofconstruction and combination of elements .hereinafter set forth and thenspecifically designated by the claims. l

In order that those skilled in the art to which this inventionappertains may understand how to vmake and use the same,'I will describeitsconstruction in detail, referring by numerals tofthe accompanyingdrawing forming a part of this specification, in which- I I a e Figure1,.is a section of a tank, a portion thereof being left ,in elevation tomore clearly, illustrate my invention.

Fig. 2, is across section at the line mw of Fig. 1, the intakefloat'ballbeing omitted.

wFig. 3, is a plan view, a portion of the front wall of the tank beingsectioned away to clearly. illustrate the location and construction ofthe; quick acting mechanism.

Fig. 4, is an enlarged detailed plan view of the lift for giving theinitial start 'to the siphon. i

Fig. 5, 1s a section of Fig. 4, the hinged leaves being shown 111 fulllines in their. ele- Specificat-ion of Letters Patent.

Application filed November 3, 1916. Serial No. 129,339.

vated position and in dotted lines in their lowered position.

Fig. 6, is a side elevation of the lift, one

of the flanges for securing the lift to the stirrup being omitted; and

Fig. 7, is an enlarged elevation of the quick acting mechanism lookinginthe opposite direction from Fig. -1.

In carrying out my invention as here embodied 1 represents an ordinarytank or receptacle in which is secured the stationary siphon 2, thelower end of which projects through the bottom of the tank and issecured thereto by a nut 3 run upon the threaded shank of said siphon;the protrud lng end of said shank serving to couple the siphon to awater closet or other device.

Within the intake end of the siphon is 1ocated the lift 4 which has theopenings 5 therethrough and upon this lift are hinged leaves 6, so astonormally lie flat upon the upper surface of the lift and having aswinging movement to the position shown in full lines in Fig. 5. Thislift is secured to the stirrup 7 which latter in turn is suspended fromthe operating lever- 8.

The operating lever'8 is pivoted at 9 to a plate 10, which plate issecured tothe front wall of the tank by the shank 11 which. passesthrough said wall and has a nut 12 threaded thereon for securing theplate in proper position.

A shaft 13 passes through the shank 11 andcarries upon its inner end acam disk, 14.

provided with a cam 15, and to this disk is attached one end ofthespring 16, the other I end of said spring being attached to the lever 8at 17. This cam disk is limited in its rotation against the action ofthe spring by a stop 18 against which the lug 19 projecting from saiddisk is adapted to strike,

and the lever 8 is limited in its upward and downward swing by the stops20 and 21 respectively. On the outer end of the shaft 13.

is secured a handle 22 for operating the cam 1 disk through the mediumof the shaft.

From the foregoing description the operation of my invention will beobviously as follows:

The tank having been filled with water through the intake valve 23 tothe point just below the upper edge of the bridge of the siphonasindicated by, the water level line 24 and the further inflow of waterbe-;

the lever while the spring is being drawn to its maximum tension,whereby said lever will be given a quick upward movement at apredetermined point in the operation of the handle.

4:. In a flush tank a siphon having its outlet end projecting throughthe bottom of said tank, a lift fitted to slide loosely within theintake leg of said siphon, a suspended stirrup extending downward on theoutside of the siphon, the lower portion of said stirrup projectingupward into the mouth of the siphon and supporting the lift, anoperating lever from which the stirrup is suspended, a hand lever, andmeans for giving the operating lever a quick upward movement at apredetermined time, relative to the movement oi the hand lever,

In testimony whereof, I have hereunto aiiixed my signature.

SAMUEL S. VILLIAMSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents Washington, D. C.

